I have a VICTRON ORION-tr 12 12 9 connected between an AGM battery and a LIPO4 battery. When I turn on the unit I do not see any current flow between the Lead and Lithium battery. Output voltage of the VICTRON ORION-tr 12 12 9 is set at 13.9 v. Why no current flow? I am trying to get my outboard’s alternator to charge the Li battery.
Each battery will have a fuse, check both out,
Also look at the Orion’s remote port to ensure that there is a link or other to enable the converter.
Is the input voltage higher than the engine shutdown detection settings. It should only charge the lithium battery when the lead acid battery is being charged so the input voltage is higher than something like 13.4V. If the lead acid battery is not being charged then it will not charge. Have you checked voltages at the Orion with a multimeter.
The normal non-smart Orion is NOT designed as a charger!
You need to use an Orion-Tr Smart or Orion XS.
The current manual still allows battery charging.
Not ideal, but somewhat useful for a slow float charge.
I have a switch. Outboard is at 14.4v and battery monitor say -.89 amps. It looks like the lipo4 is charging the agm battery. When I disconnect the lipo4 the boat runs 100% off the orion/agm. Orion output voltage is set at 13.9v and lipo4 is at 13.2 but currnt flow is from li to agm. Do I need to set Orion output volts higher?
A diagram would help us understand your set up. Have you connected the Orion the right way around. 13.9V is high enough to charge a lithium battery. Again, have you checked the system with a multimeter. How big is the lithium battery and does the voltage increase.
That would be a bad idea. From the manual. Always adjust the output voltage before connecting converters in parallel or connecting a battery.
You can test the output of the Orion. Disconnect the LFP battery and check the voltage. If you are competent you can also put a load on the output to check the current output. Something like a 12v light globe, 100w max.
Yes, the orion is connected the right way. Yes I checked the installation with a DVMM. Output voltage was set with nothing connected to the output. I initially set the output voltage to the same voltage as the AC chargers output, 13.65. Once the LIPO4 battery was connected to the Orion and the Enable switched ON no current was detected on the LIFETIME APP, or by the shunt resistor or my ammeter. I then raised the output voltage on the ORion first to 13.9 V then when I got the same NO CHARGING results I raised the output to 14V but I got the same results, NO CHARGING. Next I removed the LIPO4 battery and ran the boat from the LEAD Acid battery upstream of the orion and everything operated on the boat as normal. When the LIPO4 was added back in the boat voltage changed from the 12.5 of the lead battery to 13.3 of the LIPO4. I am an electrical engineer and I am competent at electrical work. At this point I got frustrated that the Orion does not operate as expected so I bypassed the Orion and have the outboard directly connected to the Lead battery then to a A/BOTH/B/OFF switch then to the LIPO4 battery. When the outboard’s RPM’s are increased such that the alternator voltage is above the 13.3 V of the LIPO4 only then do I see charge current flow from the alternator to the LIPO4 battery. At this point it looks like the Orion being used as an interface between a Lead battery and a LIPO4 battery is beyond its capabilities. My Renogy MPPT controller interfaces well with this LIPO4 battery but the ORION DC-DC Controller does not. Attached is my boat’s schematic, before the Orion was bypassed. Please review and let me know where I may have applied this Orion incorrectly.

